tool minor cutting edge

例句：

1. 1.The minor cutting edge of the knife is sharp enough to cut through even the thickest fabric.
   这把刀的次要切割边缘足够锋利，可以切断最厚的布料。
2. 2. The engineer used a minor cutting edge to create a more efficient design.
   工程师使用次要切割边缘来创造一个更高效的设计。
3. 3. The researcher focused on the minor cutting edge of the technology, exploring its potential applications.
   研究人员专注于这项技术的次要切割边缘，探索其潜在的应用。